Emulsifying apparatus.



A. B. GARDINER, Jn. a R. M. SHAFFER.

EMULSIFYING APPARATUS.

APPLICATION FILED MAR.29,1912.

Patented Oct. 29, 1912.

UNITED s'rATEs PATEiWr oEEioE.

ASA B. GABDINER, JR., OF COCKEYSVILLE, AND RICHARD M. SHAFFER,OFIBALTIMGRE,

" MARYLAND.

EMULSIEYING APPARATUS'.

Specication of Letters Patent.

Patente-doet. sarete.

` Jr., ofCockeysville, in-the county of Baltimore, in the State ofMaryland,and RIGH- ARD M. SHAFFER, of the city of Baltimore and State ofMaryland, have invented certain Improvements in Emulsifying Apparatus,of which the following is a specification.

This invention in common with others of its class, is for the purpose ofbreaking up the but-ter fat globules of milk and cream,y

into'minute bodies, and with the other .constituents of milkor cream,produce a uniform or homogeneous. mechanical mlxture -usually termed anemulsion; and it consists in a peculiar construction of anapparatus forthe above` named purpose, as will hereinafterfully appear.

ln the further description of the said invention which follows,reference' is made to the accompanying drawing forming a part hereof andin which Figure l is a longitudinal section of the improved emulsifyingapparatus and Fig. 2 a section ltakenY on the broken linea-ai in Fig. 1.Fig. 3 is a longitudinal section of a part of the apparatus,illustrating an alternative construction hereinafter described.-

Referring now to the drawing, l is a shell having' the nozzles@ and blfor'the admission and the discharge, respectively, of the milk orcream. These nozzles are exteriorly threaded in order that the formercan be connected to a vpipe leading to a. pump whereby the'milk or creamto be treated is forced into the shell at great pressure, and the latter.to a pipe leading to any suitable receptacle for the finished product.The shell 1 from its upper end to near its bottom, is conicallybored,.or in other words provided with a smooth conical surface.

2'is a bonnet screwed to the upperend of the shell. Extending from thecircumference of the bonnet are lugs (l, which are bored to receive thelower ends of the standards 3 to which cross bar 4 is fastened.

5 is a movable plug of frusto-conical form situated in the shell andprovided .with a multiplicity of annular grooves e which are preterablequally spaced. The edges f of the annu ar project-lons c formed by thegrooves e are made as sharp as practicable, in order that when spacesare produced by slightly lifting the plug, there will be considerablefrictionas .the milk or cream .passes them. The plug 5 has a stem 7which extends through a suitable packing box 9 in the bonnet.A

lt) is a screw. bolt in the cross bar 4 terminat-ing ina collar l2. Thecollar andl screw are boredjto receive the upper end of -the stem 7which fits loosely therein. 0n the stem 7 is a'collar 13 similar to thecollar 12 on the screw 10; and between the two collars, and around thestem 7 is placed a coiled spring 15 which is under tension.

The strength ofy t-he coiled springwhen compressed by the screw 10 issuch that the milk or cream when forced int-o the apparatu-s will causethe plug to lift slightly and disclose a. multiplicity of minute annularapertures aroundits projections c through which the material will pass;and in the operation, the globules of but-ter fat arel broken up; and bythe time the material has passed through all the apertures itwill escapeby means of the discharge nozzle 6 in they condition of a uniform orhomogeneous emulsion. f

It will be seen thatwith the construction `described the portion of the,shell above the plug, is practicably'under no internal pressure, andthat when ordinary care is exercised in packing the box in the bonnet,there will be no leakage.

The ultimate result sought to be accomplished by means of the apparatusas described, vand the advantages of the process involved, are Sowellkno-wn' in the art as to render any explanation herein superfluous.

In Fig. l the central or inner portion of the plug is shown as strictlyconical, while in Fig.'3 this'is not'the case, the bottom of the groovese? being rounded, but as in both cases the liquid has to pass sharpannular ed es it is not thought that there will be any di erence in theoperation of the apparatus, or the condition of the product therebyproduced.

We claim as our invention 1. In an emulsifying apparatus, aj shellhaving a .conical inner surface and provided with an inlet and an outletnozzle, combined Awith a plug having a similar conical outer surface andan acute annular edge, adapted to fit' the inner surface of the shell,and serve as means to close communication between the two nozzles, andan appliance toyieldinglyhold t-he plug with its acute annular edge inContact with the shell, substentiully :is specied.

2. ln 'an emulsiiying apparatus, e shell having a. conical innersurface, and provided with an inlet'and an outlet nozzle, combined withe. plug' having a. conical outer surface adapted to closely fit theinner surface of the shell, and provided with annular grooves,

and means to yieldingly hold the projections.

of the plug produced by the said grooves 1n cont-aclJ with the innersurface of the shell, substantially es specified.

3. ln en emulsifying apparatus, a shell having n conical inner surfaceand pron noieei vided with an inlet and an outlet nozzle, combined witha conical plug having annuler grooves therein, adapted *to closely litthe inner surface of the shell, and a spring Which acts on the plug tohold the projections of the plug produced by the said grooves yieldinglyin Contact with the inner surface of the shell, substantiallyesspecified.

ASA B. GARDINER, JR. RICHARD M. SHAlFlFER. 'Witnessesz JOS. H. THOMAS,WM. T. HoWAnD.

